Water Heater Replacement in Arlington
Get fast, fair pricing from licensed local pros. Typical Arlington cost: $1.2k – $2.8k installed.
- Tank, gas
- $1.2k – $2.8k
- Tank, electric
- $1k – $2.5k
- Tankless, gas
- $3k – $6.1k+
- Heat pump hybrid
- $2.5k – $5.6k
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Water heater replacement cost by type.
Installed prices for Arlington, adjusted for local labor. Larger tanks and code upgrades move the number up.
Water heater replacement in Arlington, MA typically costs between $800 and $4,000 depending on the type and installation complexity. With many homes built around 1946, older plumbing and closed systems often require an expansion tank per Massachusetts code. Cold winter inlet water and a preference for gas heating make heat pump water heaters a strong fit, especially with the federal 25C tax credit covering 30% of cost up to $2,000. A licensed plumber must pull a permit, adding $50–$200 to the job.
- Tank, 40–50 gal gasThe default for most US homes$1,200 – $2,800
- Tank, 40–50 gal electricNo venting required$1,000 – $2,500
- Tankless, gasEndless hot water, higher BTU gas line often needed$3,000 – $6,100+
- Hybrid heat pumpMost efficient, qualifies for federal credits$2,500 – $5,600
- Permit & disposalMost jurisdictions require it$50 – $350
* Cold-region homes may need extra insulation or larger tanks.
Water heaters in Arlington
U.S. Census ACS- Households
- 18,362
- Homeowners
- 11,812
- 58% own
- Median home value
- $839,200
- Median income
- $136,312
- Median home built
- 1946
- Housing units
- 20,381
With a median home built in 1946, many Arlington water heaters are at or past their 8–12 year lifespan — a common reason replacements spike here.
What’s different about Arlington.
Generic cost pages skip the things that actually decide your price and your unit’s lifespan here — local code, water, and the money you can claim back.
Recommended unit for Arlington
Given Massachusetts’s cold northern climate and gas water heating, heat-pump (hybrid) is the sensible default for most Arlington homes. Winter inlet water runs cold here, so recovery rate matters — size up a tankless or favor a high-recovery tank. A pro can confirm the right size and fuel for your home.
Sources: Massachusetts plumbing permit and expansion tank requirements (MV Plumbing guide) · 248 CMR 10.14 Water Supply and Distribution System (Cornell LII) · EIA Massachusetts state energy data
What Arlington code requires
Replacing a water heater in Arlington follows Massachusetts rules under the Massachusetts State Plumbing Code (248 CMR), a state-specific code. Here’s what applies statewide:
- PermitRequired
Pulled by your licensed plumber; covers gas/venting and the expansion tank.
- Seismic strappingNot required
No state strapping mandate — one less line on the bill.
- Expansion tankRequired on closed systems
Required where a pressure regulator or backflow preventer is present.
- Plumbing codeMassachusetts State Plumbing Code (248 CMR), a state-specific code
- Good to know—
Water heater replacement must be done by a licensed plumber/gas fitter under a permit; expansion tanks required on closed systems since 2010.
Sources: Massachusetts plumbing permit and expansion tank requirements (MV Plumbing guide) · 248 CMR 10.14 Water Supply and Distribution System (Cornell LII) · EIA Massachusetts state energy data
Not sure which rules and rebates apply to your home?
A licensed Arlington pro will walk you through code, the right unit, and what you can claim back — in one quick call.
No obligation — talk through your options.
Money back in Arlington
Massachusetts water heating is mostly gas, which shapes the money back:
- Federal30% of cost, up to $2,000Federal 25C tax credit →
For a qualifying ENERGY STAR heat pump water heater. Claimed on your federal return.
The federal 25C tax credit (30%, up to $2,000 for a heat pump water heater) applies in every state; Massachusetts' main HPWH rebate is the $750 utility-administered Mass Save program, excluded here as utility-only.
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- 1
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- 2
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- 3
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Water Heater Replacement in Arlington, explained.
What Affects Water Heater Replacement Cost in Arlington
Prices vary by unit type: tank gas ($800–$2,000), tank electric ($900–$2,200), tankless ($1,500–$3,500+), and heat pump ($1,800–$4,000). Labor costs are higher due to Arlington's older homes, which may need piping or venting upgrades. Permits and expansion tank installation (required on closed systems since 2010) add $100–$300. The federal tax credit can lower heat pump costs by up to $2,000.
Common Water Heater Issues in Arlington
Old Home Plumbing
Many Arlington homes built in 1946 have galvanized pipes or outdated connections that may need replacement during a water heater swap.
Expansion Tank Requirement
Massachusetts code requires an expansion tank on closed systems, which is common in Arlington due to backflow preventers or check valves.
Cold Inlet Water
Cold northern winters mean very cold inlet water, reducing recovery rates and making heat pump or high-efficiency units more practical.
Water Heater Replacement FAQs — Arlington
Yes, Massachusetts requires a permit for water heater replacement. A licensed plumber must pull the permit, and the work must comply with the Massachusetts State Plumbing Code (248 CMR).
Water Heater Replacement near Arlington
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